◎ 题干
Tom hid himself behind the door, _____ he could hear the steps of his mother clearly.
[     ]
A. from which
B. from there
C. where
D. from where
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Tom hid himself behind the door, _____ he could hear the steps of his mother clearly.[ ]A. from which B. from thereC. where D. from where …”主要考查了你对  【关系副词】【介词和介词短语】【非限制性定语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。